40043151 has 6 divisors (see below), whose sum is σ = 57840120. Its totient is φ = 26695428.

The previous prime is 40043149. The next prime is 40043189. The reversal of 40043151 is 15134004.

It is a happy number.

It is not a de Polignac number, because 40043151 - 2¹ = 40043149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2224611 + ... + 2224628.

It is an arithmetic number, because the mean of its divisors is an integer number (9640020).

Almost surely, 2^40043151 is an apocalyptic number.

40043151 is a deficient number, since it is larger than the sum of its proper divisors (17796969).

40043151 is a wasteful number, since it uses less digits than its factorization.

40043151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449245 (or 4449242 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40043151 is about 6327.9657868860. The cubic root of 40043151 is about 342.1181237599.

Adding to 40043151 its reverse (15134004), we get a palindrome (55177155).

The spelling of 40043151 in words is "forty million, forty-three thousand, one hundred fifty-one".